Magazine shift for line casting and composing machines



E. s. LARSON 1&1

MAGAZINE SHIFT FOR LINE CASTING AND COMFOSING MACHINES Original FiledJan. 8, 1934 2 Sheets-Shee'hl f ATTOREY A N "2?; mm E. s. LARSON 9MAGAZINE SHIFT FOR LINE GASTING'.AND GOMPOSING MACHINES Original FiledJan. 8, 1934 2 Sheets-Sheet 2 IINVENTOR /03 94 EDWQ/PD 5. .Lfilwo/vPatented Apr. 7, 1936 UNITED STATES MAGAZINE SHIFT FOR LINE CASTING ANDCOMLPOSING MACHINES Edward S. Larson, Chicago, Ill., assignor toTeletype Corporation, Chicago, 111., a corporation of DelawareApplication January 8, 1934, Serial No. 705,646 Renewed March 28, 193519 Claims.

The present invention relates to linecasting and composing machines andmore particularly to improvements in automatic control mechanisms forthe operation thereof.

This application embodies an improvement relating to the subject matterconcerned in copending applications Serial Nos. 584,387 and 721,657filed January 2, 1932 and April 21, 1934, respectively.

Linecasting and composing machines of the commercially well-known typesare frequently provided with a plurality of matrix storage magazinessometimes located one above the other in vertical alignment and at othertimes one along side the other in horizontal alignment. The purpose inproviding more than one such magazine is to afford increased variety orselectivity under the control of a single operating unit, or, in a morelimited sense, under control of a single set of release reeds. Thus witha given number of matrix release reeds which are equivalent in number tothe number of classes of matrices in one storage magazine and byproviding means for shifting said release reeds collectively they may bemade to serve an additional one or ones of a plurality of matrix storagemagazines, and by having associated with each magazine a certain classof matrices, the total number of selections is thereby materiallyincreased.

The shifting of a common set of release reeds to associate them witheach of a plurality of storage magazines involves the moving of severalmassive operating members whose response is inherently of a slow natureas compared with the release operations of the individual matrix releasereeds and escapement mechanisms. Accordingly, where automatic Lmits areemployed for the control and operation of linecasting and composingmachines and where, in addition, it is desired to employ the automaticmeans for shifting the release reeds between each of a plurality ofmagazines, it is necessary that a proper time delay interval precede theconsummation of each shift operation and that the record readingapparatus which is responsive to stored signals be momentarily arrestedin order to allow a sufiicient amount of time for previously releasedmatrices to be properly assembled and for preventing the idle operationof the sensing apparatus. It is also desirable to arrest the progress ofthe control form or perforated tape during the comsummation of the shiftoperation in order that the reception of subsequent matrix releasesignals may be suspended until the release reeds have been completelyshifted and are brought into alignment with the newly selected magazineescapements.

The main object of the present invention is the set of release reedsbetween each of several matrix storage magazines under the control ofstored signals. 7

A further object of the invention is the provision of means forarresting the signal sensing mechanism during the reed shifting intervaland for interposing a variable time delay element that is effectiveduring the aforedescribed shift operation to suspend operation of theline composing control mechanism.

In order to: describe the present invention, a preferred embodimentthereof has been illustrated in the accompanying drawings and isparticularly described in the following specification. This adaptationof the present invention is designed to be applied to mechanisms such asthat disclosed in United States copending applications serially numbered600,606, filed March 23, 1932, and 704,467, filed December 29, 1933. Inaccordance with the provisions thereof, a record reader mechanism isemployed having a constantly rotating control shaft that is operative toperiodically withdraw and permit to be returned a set of tape sensinglevers. The same shaft is also operative upon a signal transfermechanism and in accordance with the variable position of the severalsensing levers causes the transfer of a set of code signals to acorresponding set of code selector bars. The position of the severalselector bars then affords a selective clearance to one of a pluralityof individual elements which thereupon is permitted to be moved intoeffective position where, under the influence of a common actuator, itreceives an actuating motion with which it initiates the particularperformance for which it is delegated.

It is contemplated, in accordance with the present adaptation, tocontrol the shifting of a set of common release reeds between theescapement mechanisms of each of a pair of magazines located one abovethe other and to be referred to hereinafter as the main and theauxiliary matrix magazines. The release reeds are carried in a carriageor cradle member that is capable of being reciprocated laterally so asto present an adjacent portion of the release reeds in operativealignment with one or another of a corresponding set of escapementmechanisms. The shifting of the carriage is effected through the agencyof a series of levers and bell cranks which are under the control of apair of symmetrically similar and opposite actuating levers each ofwhich is selectively set into its effective position and tends toperform its shift operation through the medium of a spring element whichreceives and momentarily stores the shift impulse under relativelyinstantaneous control to await the more lumbersome or slower response ofthe magazine shifting linkage.

The pair of spring urged actuating levers are selectively set by acorresponding pair of bars feeler levers.

which in turn are under the control of a pair of pivoted levers thatextend into the region of and are controlled by one pair of theplurality of selectable elements which are under the control of recordreader mechanisms mentioned above. The arrangement of the levers is suchthat the selection and operation of one concurrently effects the releaseof the other.

For a better or more comprehensive understanding of the presentinvention, reference may be had to the accompanying drawings in whichlike reference characters designate similar parts throughout and inwhich Fig. 1 is a perspective view of portions of a tape sensingmechanism and a line composing machine embodying the present inventionhaving certain portions broken away or omitted for the sake ofclearness;

Fig. 2 is a side elevational view of the control reed shiftingmechanism;

Fig. 3 is a fragmentary elevational view of a portion of the mechanismillustrated in Fig. 2 showing another condition of operation thereof;

Fig. 4 is a transverse sectional view through the record readermechanism illustrated in Fig. 1, and

Fig. 5 is a transverse sectional view similar to Fig. 4 but illustratinganother condition of operation thereof.

In the accompanying drawings the reference character N indicatesgenerally a record reader mechanism which is adapted to receive acontinuous web of material l2 fed through the medium of a sprocket Wheell3 that is carried upon a shaft l4. A ratchet wheel |5 also secured toshaft l4 receives intermittent motion under the impulses imparted to itby a reciprocating pawl I6 pivotally supported upon the extremity of alever I! which is in turn pivoted upon a stud shaft l8 as betterillustrated in Figs. 4 and 5. The lever I! is normally urged in aclockwise direction by a spring l9 and responds thereto until anopposite extremity 2| thereof comes into contact with the end of anadjustment screw 22.

Another lever 23 also pivoted at l8 carries the adjustment screw 22 andis provided at its extremity with a follower roller 24 which engages andfollows the periphery of a cam 25 secured to the record reader operatingshaft 26, so called because in addition to the feed sprocket cam 25 itcarries also two other cams 21 and 28 which together with cam 25 performall of the functions incident to actuating the several elements whichcomprise the record reader Cam 21, Fig. 1, engages the follower rollerof a bail assembly 29 which, through its bail rod 3|, periodicallywithdraws the several levers 32 and 33.

The levers 32 are in the present instance six in number and will bereferred to hereinafter as They differ in one essential from the lever33 by being provided with integrally formed arms 34 at the extremity ofwhich are carried the feeler pins 35. Each revolution of the shaft 26may be considered as the unit operating cycle, at a certain interval inwhich cam 25 operates to feed the tape l2, during another interval inwhich cam 21 withdraws the several feeler levers 32 and 33, and during athird interval in which cam 28 operates the transfer mechanism forrelaying the signal as it is sensed by the several feeler levers 32 andlever 33. As the feeler pins 35 are permitted to engage the tape l2,certain of them encounter perforations and are permitted to rotate in acounterclockwise direction until the feeler pins 35 protruding throughthe tape I2 permit the main body portions 32 to assume positions such asthat exemplified by the foremost lever in Fig. 5, while certain othersof them, failing to encounter such perforations in the tape I2, arethereby withheld from rotating to this extent and assume positions suchas indicated by the posterior lever illustrated in Fig. 5. In accordancewith the alternative placement of the levers 32 or 33 as thus indicated,their lowermost projections 36 and 31 are brought into registration witheither one or the other of a pair of cooperating lugs 38 or 39 ofcorresponding transfer levers 4|.

The transfer levers 4| are of Y-shaped configuration and correspond innumber to the levers 32 and 33. The several transfer levers 4| areloosely pivoted upon a shaft 42 which forms part of a bail structure 43rotatable about the axis 44. The bail 43 forms part of a bell crankassembly in its relation with the arm 45 which carries the followerroller 46 that in turn constitutes the contact member engaging theactuating cam 28.

Through the impulses received from cam 28, the bell crank assembly 4345is periodically rocked about shaft 44, thrusting the several Y- shapedtransfer levers 4| upwardly and into engagement with their projections36 or 31 in accordance with which the levers 4| are rockedcorrespondingly in a clockwise or counterclockwise direction dependingupon the condition of their associated levers 32 or 33. Lowermostprojections 4'! of Y-shaped levers 4| comprise connection elementsthrough which the levers 4| are articulated to a corresponding set ofconnecting bars 48 through which the condition transferred by the levers4| is imparted to a set of code bars 49. The code bars 49 are providedwith variously arranged notches 5| and projections 52 such that inaccordance with each placement of the several of them an individualtransverse alignment of the notches 5| is afforded, permitting aclearance thereby into which may be admitted an adjacent one of aplurality of selectable elements 53.

Elements 53 are constantly spring urged by individual springs 54 and aremomentarily permitted, in response to such urge, to seek admission intotheir respective alignment of notches 5|, but since for each placementof the several code bars 49 there is permitted but a single alignment ofnotches 5|, only one of the elements 53 may be thus selectivelyconditioned by admittance thereof into its alignment of notches. Will befully understood by referring to the copending applications mentionedabove, the selective conditioning of any of the elements 53 results inthe ultimate performance of a certain function to which the particularelement may be delegated. In the interest of explaining the presentinvention, two of the elements 53 specially indicated 55 and 56 areparticularly significant in that they control the performance of themagazine shift mechanism about to be described. In this connection it isnoted that among the code bars 49 one is specially indicated 51 and thatthis bar differs somewhat from the general class of bars 49 by beingprovided in this case with but two lugs 58 and 59 which normallyregister belowlthe selectable elements 55 and 56, respective y.

The selection of either of the elements 55 or 55 is obtained upon thereception of either of two associated signals in accordance with apredetermined arrangement. Upon the reception of either of these twosignals a certain condition is established peculiar thereto anddiffering thereby from any of the conditions that are established uponthe reception of any other signals as will be indicated. While thisspecial condition will be described as resulting from the reception ofbut these two indicated special signals, it may be observed that anynumber of signals may be made to respond with a similar result and thatthe particular signals have been arbitrarily selected so that, ifdesired, any other particular signal or signal code may, if preferred,be substituted instead.

The response of the record reader H to either or any of these specialsignals is similar to the response of the general class of signals up tothe point of positioning the several connecting rods 58. Each bar 48 isprovided with a notch 6!, Figs. 1, 4, and 5, individual to it andarranged with respect to the other notches 6d of the other bars 48 in amanner such that upon the reception of either or any of the speciallydelegated signals such as the ones which are to select the elements 55and 56, the notches El are brought into transverse alignment affording aclearance, as in the case of the notches 5|. In this case, however,there is admitted into the clearance a transversely extending rod 62which is carried by a bell crank lever having a laterally extending arm63 and an upwardly and rightwardly extending arm 64. A spring 65 urgesthe bell crank lever iii-64 in a counterclockwise direction and when theclearance permitted by the alignment of notches GI admits the rod 62thereinto, the bell crank is rotated about its pivot 66, allowing theupper extremity of arm 64 to move behind the extremity of a downwardlyand rightwardly extending projection 51 integrally formed with tapeadvancing lever I I. The movement of arm 64 behind projection 67 occursduring the instant in which lever H is in its elevated position asillustrated in Fig. 4, preventing the return thereof in response to theurge of spring I!) and causing to be arrested thereby the furtherprogress of tape advancing shaft M and its associated elements.

In addition to this result, the aforedescribed selective movement ofbell crank lever 63-64 is manifest in a further result. Normally andbefore this selection a pin 68 secured to arm E l engages a downwardlyprojecting pawl 69 and withholds it from operative engagement with aratchet wheel ll. Pawl 69 is pivotally carried by an associate portion72 which may be integrally formed with the constantly reciprocatinglever 23. Pawl 69 is normally urged in a clockwise direction by a spring73 so that it receives, at all times, a reciprocal motion under theactuation of lever 23, but until the selective movement of bell cranklever 63-64, the reciprocal motion of pawl 69 is ineffective. After theaforedescribed selection of bell crank lever 63-64, however, when pin 68is withdrawn, the tooth of pawl 69 is permitted to come into engagementwith the periphery of a ratchet wheel H, causing to be imparted to thelatter member a counterclockwise movement as viewed in Figs. 1, 4, and5- 1 The motion imparted by pawl 69 to ratchet wheel H results in aprogressive rotation of shaft 14 because of the detent effect ofcooperating pawl T5 in association with a secondary ratchet wheel I6,Fig. 1. The rotation of shaft 14 under the stimulus of a ,..cont nuesunuia p n 11 carried by ratchet wheel H encounters a sidewardlyextending lug iii of a tripolf lever 19 loosely pivoted on shaft 14.When this occurs, the motion of shaft M is imparted to lever 19 whichthereupon joins in the movement therewith until a condition is obtainedsuch as that indicated in Fig. 4 when an adjustment screw Bl carried bylever 19 comes into contact with and subsequently moves lever 33 fromits counterclockwise position, in which it is normally found, to itsclockwise position as indicated in this figure.

Meanwhile, cam 28 continuing to rotate with shaft 26 imparts areciprocating motion to the bail structure 43 and through it to theseveral transfer levers 4!. But since the tape I2 is arrested at thistime and the several levers 32 and 33 maintained in the same position bythe registration of the particular code of signals in a dormantcondition, no result or change of conditions is obtained by thereciprocal movement of the I transfer levers 4!. When, however, thespecial lever 33 is moved leftwardly by the continued rotation of shaftM and the motion imparted to it through lever 79 and screw 8 l, a newcondition is established so that upon the succeeding reciprocal movementof the bail structure 43 when the transfer levers 4! are brought intoengagement with the several levers 32 and 33, the particular transferlever coming into engagement with special lever 33 is rotated in aclockwise direction, causing st to be moved its connecting bar '58rightwardly and thereby withdrawing the special code bar 5? in the samedirection.

As the code bar 51 is withdrawn and with it its associated connectingbail 8, rod 82 is cammed out of the alignment of notches El by thedisplacement of the particular bar 48 associated with code bar 5?. In sodoing, bell crank 53-6 5 is rotated clockwise and the foremost portionof arm 64 is withdrawn from blocking projection (if. 4

This frees lever H and permits it to resume tape feeding operationswhile at the same time pin 68 reengages pawl 69 and cams it away fromratchet wheel I I. Cooperating pawl 15 has integrally formed with it abacking strip 80, Fig. 1, so that as pawl 69 is withdrawn itscooperating pawl 15 is also withdrawn. This frees shaft M which then, inresponse to a spring 96, is restored to normal position as indicated inFigs. 1 and 5.

The normal position of shaft 14 is determined by the stop position atwhich an arm Hm, which is angularly adjustable thereon, encounters thestop pin I Hi which is anchored in the supporting structure. Where it isdesired to vary the amount of time occupied by the aforedescribedmechanism in effecting a delay, it is but necessary to vary the angularposition of arm I08 with respect to shaft 14, or in other words, to varyth number of teeth which intervene the normal or stop position of shaft74 and the point at which pin 1! encounters the projection 78 oftrip-off lever 79.

As was stated before, the signals which started into operation themechanism under the control of the alignment of notches 5! belong to aclass which in the present case is adapted to place into selectivecondition two of the plurality of selectable elements indioated 55 and56. Upon the proper alignment of the several code bars 49, in responseto the particular signals, a row of notches 5i is brought into alignmentfor the selective conditioning of either element 55 or element 56, butdue to the normal position of the projections 58 or 59 the particularelement 55 or 55 is not permitted to enter into the transverse clearancethat is afforded by the notches 5| of the remaining code bars 49. Thiscondition prevails during the time in which shaft I4 proceeds to rotateas described above. At the conclusion of this operation when the speciallever 33 is displaced and its changed condition is transmitted into amovement of code bar 5'1, the projections 58 and 59 are withdrawnmomentarily, permitting the particular one of the elements 55 or 59 toenter into selective condition and to promptly complete the operationfor which it is delegated.

In carrying out the functions of the particular invention, elements 55and 56 cooperate in a reciprocal manner, and are found most convenientlyarranged in symmetrically opposite relationship as indicated in Fig. 1,under which condition eement 55 has a downwardly extending projection 92while element 56 has a similar upwardly extending projection 83.Projections 02 and 83 cooperate with a pair of first class levers 84 and85 which are pivotally supported in spaced relation with respect to eachother upon a vertically extending post 96. For purposes of regulation,levers 94 and 85 are provided with adjustment screws Ill, indicated alsoin Figs. 2 and 3.

Upon its selective movement either of the levers 55 or 56, is thrustforwardly, as indicated in Fig. 1, rocking its associated lever 84 or 85in a clockwise direction. In the case of lever 84 this motion isimparted to an associated bar 08 which is confined to limited horizontalmotion by the slots 89 and its supporting screws 9 I In the case oflever 85 the motion is imparted to a similar but symmetrically oppositebar 92, Figs. 2 and 3. Bar 92 is similarly provided with slots 89 andsupporting screws 9I. As viewed in Fig. 2, the right-hand screws 9| ofbars 88 and 89 are secured to a base plate 93, but the left-hand screws9| are each carried in a sidewarclly extending lever 94 of a T-shapedlever 95 that is centrally pivoted at 96. A sidewardly extending arm 91of lever 95 is pivotally articulated at 98 to a link 99 which is in turnconnected at IOI to a bell crank I02.

The movement of either bar 88 or 92 in response to the selective motionimparted to it which originates with its element 55 or 56 is adapted tomove link 99 upwardly or downwardly for the purpose of shifting a commonset of release reeds I26 into communicating relation with one or anotherof a pair of sets of martix escapements I21 and I29, and, in addition,is adapted to release its associated element 88 or 92 from itspreviously set position. The manner in which this is accomplished may bebest perceived by comparing Figs. 2 and 3, supposing a conditionexistent as illustrated in Fig. 3 in which the mechanism is disposed torender the main magazine in effective condition. The alternative willthen be as illustrated in Fig. 2 with the auxiliary magazine ineffective condition. To obtain this end, element 84 is selectivelyoperated causing its screw Bl to engage bar 88 and shift the lattermember leftwardly. With this, the foremost end I03 of bar 68 is broughtinto engagement with arm I04 of a three-armed lever I05 that is alsopivoted at the pivot screw 96. This causes lever I05 to be rotated in aclockwise direction. In so doing, another arm I06 of lever I05 beingconnected to a spring I01, the other end of which is secured to an armI08 of a similar lever I09, causes the stretching of spring I01, andthereby storing the operative impulse, which originated with theselective movement of element 55, within the spring I07. After bar 88has moved through a predetermined distance and lever I05 has beenrotated from the position indicated in Fig. 3 until its approximateposition as indicated in Fig. 2, another arm III of lever I05, which isprovided with a shouldered tooth II 2, becomes latched behind theprojection II3 of a spring loaded pawl II4 pivoted at II5. At about thesame time a pin II6 which may be integrally formed with bar 88 andengaging one end of another pawl III similar to but in symmetricallyopposite relationship with pawl I I4 rocks the latter member clockwiseinto the position as indicated in Fig. 2 and thereby releases its holdat projection II 8 of lever I09. When lever I09 is thus freed, itresponds to the urge of spring I01 rotating clockwise from the positionindicated in Fig. 3 to that indicated in Fig. 2 when its arm IIOencounters a stop pin I20. Levers I05 and I09 are provided in their armsI06 and I08 with coacting screws H9 and I2I arranged in oppositeabutting relation and receiving between them the arm 91 of T-shapedlever 95.

Thus when lever I09 is freed by the release of its pawl I I1 and ispermitted to assume a position such as that illustrated in Fig. 2, itsclockwise motion is imparted through screw IZI to the lever 95,thrusting arm 91 upwardly and accordingly moving link 99 upwardly. Thisrotates bell crank I02 in a counterclockwise direction about its pivotI22. In so doing, the upstanding arm I23 of bell crank I02 is rocked tothe left.

The motion of arm I23 is transmitted through its pin and slotarticulation I24 to a cradle structure I25 within which is supported aset of release reeds I26, moving the latter from their previous positionin registration with the escapement bars I2! of the main magazine, Figs.1 and 2, and into registration with another set of escapement bars I28of the auxiliary magazine.

The released reeds I26 are free to partake of limited vertical movementunder the actuation of manual control keylevers or automatic controlkeylevers as fully explained and illustrated in the copendingapplications referred to above. This motion by reeds I26 may becommunicated to the bars I21 or I28 in accordance with the placement ofcradle I25. As illustrated in Fig. l, cradle I25 is disposed to permitthe cooperation between reeds I26 and bars I21, whereas in the showingof Fig. 2 the reeds I26 are illustrated in full line position asdisposed to register with bars The bars I21 cooperate each with anindividual escapement device, generally indicated I29, of an upperstorage magazine I3I, referred to as the main magazine, while the barsI28 cooperate with other but similar escapement devices I32 which areassociated in corresponding manner with a lower matrix storage magazineI33, referred to as the auxiliary storage magazine. In accordance withits relationship with main magazine I3I or auxiliary magazine I33, thereleased bars I21 may be referred to as the main release bars, whilethose indicated I29 as the auxiliary release bars. It may be explainedthat with the cradle I25 in position to permit the registration of reedsI26 with the main release bars I21, line composition may continueindefinitely with the matrices released from the magazine I3I. In asimilar manner with carriage I25 in its alternative condition and reedsI26 in registration with the auxiliary bars I28, line composition maylikewise continue indefinitely, depending, of course, upon the characterof matrices in each magazine I3I or I33 and upon the desired font ortype classification which it may be desired to use.

(III

In'accordance with the foregoing description of the shifting operation,a carriage I25 was described in its transit from main magazine composition to auxiliary magazine composition. The movement in the reversedirection is identically similar in all respects except as to thesymmetrically opposite movement of the several elements. In this casebar 56 is selected and is likewise delayed from completing its selectivemovement by the blocking of projection 59. After the intervention of apredetermined delay interval when bar 57 is withdrawn, element 55 ispermitted to assume selective condition and in being moved forwardly,its projection 83 rocks lever 85 in a clockwise direction, thrusting bar92 left- Wardly as viewed in Figs. 1, 2, and 3. The movement of bar 92is transmitted to lever III, as in the case of bar 88 and lever I65,until the latching arm of bar I9 comes into engagement with tooth H8 ofpawl II'I. Thus the lever I59 moves from a position such as thatindicated in Fig. 2 to a new position such as that indicated in Fig. 3.

The continued movement of bar 92 causes its pin IIB to release pawl II'I, freeing lever I5, whereupon spring IG'I urges lever N39 to resume itsoriginal position as illustrated in Fig. 3. In so doing, screw II 9forces arm 97 downwardly, pulling link 99 in the same direction androcking bell crank I02 clockwise about pivot I22. This shifts cradle I25from its auxiliary back to its main position.

The shifting of cradle I25 from cooperative relation with the bars I21and I28 is essentially a slow operation due primarily to the large massof carriage I25 and its content of release reeds I25. For this reasonwhere it is desired to mix, in a single line of composition, thematrices of main magazine I3I and the auxiliary magazine I33, and where,in accordance with such a purpose, the movement of carriage I25 may beexecuted in the midst of a single line of composition or even severaltimes during a single line of composition, the foregoing describedstructure is especially designed to introduce a time delay intervalbetween the instant when a magazine shift signal is received in the tapeI2 and the instant at which either element 55 or 56 is selectivelyoperated. This time delay interval permits any matrices which have beenpreviously released to be fully and properly received in the assemblingblock while also it allows the slow moving, massive organs associatedwith the shifting apparatus enough time in which to move from oneposition to another. In addition, the arresting of the movement of tapeI2 by the intervention of arm 54 momentarily suspends the operation ofthe record reader II until the shifting of carriage I25 may have hadtime to be fully executed.

It will be understood that numerous modifications and variations may bemade without departing from the spirit and scope of the presentinvention. For this reason it is intended not to be limited to thespecific language of the foregoing specification nor to the detailedillustrations in the accompanying drawings but to be permitted instead alatitude of interpretation as indicated by the hereunto appended claims.

What is claimed is:

1. In a linecasting and composing machine, a plurality of matrix storagemagazines, a set of matrix release elements, means for associating saidelements with each of said magazines, apparatus responsive to Storedsignals for actuating said associating means, and a delay mechanism forsuspending the performance of said associating means in its response tosaid stored signals for the duration of a predetermined time interval.

2. In a linecasting and composing machine, a plurality of matrix storagemagazines, a line composing mechanism including apparatus capable ofbeing placed into communicable association with said magazinesindividually, a record reader responsive to stored signals forinitiating the performance of said composing mechanism, means underthecontrol of said record reader for shifting said apparatus between saidmagazines, and a delay factor for momentarily suspending the response ofsaid shifting means to its control by said record reader until precedingline composition functions shall have had time to be fully consummated.

3. In a linecasting and composing machine, a plurality of matrix storagemagazines, a line composing mechanism including apparatus capable ofbeing placed into communicable association with said magazinesindividually, a record reader responsive to stored signals forinitiating the performance of said composing mechanism, means under thecontrol of said record reader for shifting said apparatus intoassociation with each of said magazines, and means eifective during theoperation of said shifting means for momentarily suspending theperformance of said record reader.

4. In a linecasting and composing machine, a composing mechanismincluding a number of matrix release elements, a plurality of magazines,a supporting structure for said elements, means for moving saidstructure for thereby regulating the communicative relation between saidelements and each of said magazines, a signal controlled apparatus forinitiating the performance of said release elements and said movingmeans, and means for disabling the performance of said signal controlledapparatus during the interval of operation of said moving means.

5. In a line composing machine, a plurality of matrix magazines eachhaving a number of storage channels, a composing mechanism including aset of matrix release elements corresponding to the channels of each ofsaid magazines, a record reader under the control of various signalcodes for accordingly operating said release elements, means under thecontrol of certain ones of said codes in response to said record readerfor associating said composing mechanism with said magazinesalternatively, and a device associated with said record reader andresponsive to said certain codes for momentarily delaying theperformance of said associating means and for momentarily suspending theoperation of said record reader.

6. In a linecasting and composing machine, a plurality of magazines, acomposing mechanism, automatic means responsive to stored signals forassociating said composing mechanism with each of said plurality ofmagazines including a pair of selectable actuating elements, latchingmeans associated with said elements, and an intermediate memberconnecting said elements reciprocally so that the actuating movement ofeach effects the restorative movement of the other.

'7. The combination set forth in claim 6, including spring meansassociated with said actuating elements and said latching means forstoring the actuating impulses to accommodate for the inertia of said.magazines and said associating means.

8. In a linecasting and composing machine, the

combination of a pair of matrix storage magazines, a composing mechanismadapted to be associated with each of said magazines alternatively, anautomatic control mechanism for initiating a shift movement of saidcomposing mechanism between said pair of magazines including an elementindividually selectable for shifting in one direction and an elementindividually selectable for shifting in the other direction, and meansreceiving motion from said elements for executing said shift operationsincluding a spring agency for momentarily receiving and storing theoperating impulses.

9. In a linecasting machine, a composing mechanism capable of assumingtwo conditions of operation, a linkage through which said mechanism isshifted from one condition of operation to the other including a springelement operative in both directions, and latching means cooperatingwith said spring element for storing an operating impulse in eachdirection.

10. In a linecasting machine, a plurality of matrix carrying magazines,a composing mechanism capable of assuming operative association witheach of said magazines individually, a linkage through which saidmechanism is moved from one operative association to another includingresilient means operative in each direction of movement, and latchingmeans cooperating with said resilient means for storing each operativeimpulse.

11. In a linecasting and composing machine, a main matrix magazine, anauxiliary matrix magazine, a composing mechanism including a set ofrelease elements alternatively shiftable between said main and saidauxiliary magazines, apparatus for shifting said composing mechanismincluding an operating lever for shifting in one direction and latchingmeans therefor, an operating lever for shifting in the other directionand latching means therefor, a common element for receiving theoperating motion from each of said levers, and a spring connecting saidlevers and comprising a means during the operation of each of saidlevers for restoring the other of said 1evers and for momentarilystoring the operating impulses communicated through said levers.

12. In a linecasting and composing machine, a composing mechanismshiftable into communicative relation with each of a plurality ofreplaceable matrix storage magazines, an automatic control mechanism forselectively operating said composing mechanism in correspondence withvarious stored signals, means responsive to certain of said storedsignals received by said control mechanism for shifting said composingmechanism, a delay factor associated with said shifting means formomentarily suspending the performance thereof in response to saidcontrol mechanism, and regulating means for varying the time interval ofsaid delay in accordance with predetermined requirements.

13. In a linecasting and composing machine, a composing mechanismshiftable into communicative relation with each of a plurality of matrixstorage magazines, a shifting device for moving said composing mechanismfrom one position to another, a record reader responsive to the signalsin a perforated control form for operating said composing mechanism andsaid shifting device including a continuously rotatable operating shaft,and means for disabling said rec- 0rd reader during the operation ofsaid shifting device without arresting said shaft.

14. In a linecasting and composing machine, a shifting device foreffecting the movement of a subordinated apparatus into two conditionscomprising an immediate connecting element for executing the shiftoperation, a pair of coacting elements disposed for symmetricallyopposite impulsion each to each and arranged one upon each side of saidimmediate connecting element, a latch associated with each of saidcoacting elements for holding it in its effective position, and a pairof actuating members of symmetrical and inverse performance, eacheffecting upon its actuation an operative movement of one of saidcoacting elements and a release movement of the latch associated withthe other of said coacting elements.

15. In a linecasting and composing machine, a composing mechanismincluding a number of matrix release elements, a plurality of magazines,a supporting structure for said elements, means for moving saidstructure and thereby regulating the communicative relation between saidelements and each of said magazines, a signal controlled apparatus forinitiating the performance of said release elements and said movingmeans, means for disabling the performance of said signal controlledapparatus during the interval of operation of said moving means, andmeans included in the disabling means for interrupting the operationthereof.

15. In a linecasting and composing machine, a composing mechanismshiftable into communicative relation with each of a plurality of matrixstorage magazines, a shifting device for moving said composing mechanismfrom one position to another, a record reader responsive to the signalsin a perforated control form for operating said composing mechanism andsaid shifting device including a continuously rotatable operating shaft,means for disabling said record reader during the operation of saidshifting device without arresting said shaft, and means actuated by thedisabling means for interrupting the operation thereof.

17. In a linecasting and composing machine, a plurality of matrixstorage magazines, a composing mechanism selectively shiftable intocommunicative relation with each of said magazines, means responsive tostored signals for shifting the composing mechanism, means for delayingthe response of said shifting means, and means operable simultaneouslywith the shifting means for discontinuing the operation of the delayingmeans.

18. In a line composing machine, an automatic control unit including arecord reader, a shift mechanism, a set of matrix release elements a1-ternatively conditioned by said shifting mechanism, and means to arrestthe performance of said record reader during the operation of saidshifting mechanism.

19. In a line composing machine, an automatic control unit, a pluralityof matrix storage magazines, means for selectively conditioning each ofsaid storage magazines to be controlled by said unit, and means formomentarily suspending the operation of said unit during the performanceof said selecting means.

EDWARD S. LARSON.

